Hardening of proteinaceous materials

Details Hardening of proteinaceous materials Hardening of proteinaceous materials

C - Chemistry, Metallurgy

08

K

96/72

C08K 5/3462 (2006.01) C08G 59/26 (2006.01) C08G 59/52 (2006.01) C08K 5/3435 (2006.01) G03C 1/30 (2006.01)

Patent

CA 1057555

Abstract of the Disclosure Proteinaceous materials, especially gelatin, are hardened by incorporating therein at least one bis-epoxy compound corresponding to one of the formula : Image and Image wherein : X represents a 1,4-piperazinylene group or a monomethyl- or dimethyl-substituted 1,4-piperazinylene group, or represents a 1,2-pyrazolidinylene group, and n is 0 or an integer from 1 to 4. The proteinaceous material, especially the gelatin, is subsequently applied to form a photographic silver halide emulsion layer, a backing layer, a protective layer, a filter layer or any other photographic auxiliary layer.

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